This meaning shows when something happens or takes place. We use it for events or actions that come to be at a certain time or place.
The meeting will occur at noon.
Accidents can occur anywhere.
This use means an idea, thought, or feeling appears in someone's mind. It often expresses surprise or realization.
Does the idea occur to you now?
It never occurred to me before.
This meaning describes something that is present or exists in a certain place or condition. It is often used in nature or science.
This plant occurs in many forests.
Some problems occur in cold climates.
This meaning shows that something happens because of another thing or situation. Often used to talk about problems or issues.
Problems may occur after the test.
Conflicts occur during changes.
This meaning refers to something coming into view or being noticed, often briefly or unexpectedly.
A strange light occurred in the sky.
The error occurs for a short time.
This use means something is found or noted in past records or history. It often refers to events or facts that have happened before.
This event occurred in ancient times.
Similar cases occur in old reports.
In math or logic, 'occur' means an element or solution is part of a set or satisfies a condition. This is a specialized, technical use.
The solution occurs in the set of real numbers.
Certain values occur in this function.